{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "# 基本模块\n",
    "import pandas as pd\n",
    "from requests_html import HTMLSession"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "# A-0   单一页面\n",
    "url = \"https://www.liepin.com/zhaopin/\"\n",
    "session = HTMLSession()\n",
    "r = session.get( url )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[<Element 'a' href='/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=1'>, <Element 'a' href='/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=2'>, <Element 'a' href='/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=3'>, <Element 'a' href='/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=4'>, <Element 'a' href='/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=1'>, <Element 'a' class=('last',) href='/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=9' title='末页'>]\n",
      "{'2': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=1', '3': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=2', '4': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=3', '5': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=4', '下一页': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=1', '': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=9'}\n"
     ]
    }
   ],
   "source": [
    "# A-1  xpath 解析翻页a/@href\n",
    "xpath_翻页a = '//div[@class=\"pagerbar\"]/a' # 有disabled, current等href是javascript\n",
    "xpath_翻页a = '//div[@class=\"pagerbar\"]/a[starts-with(@href,\"/zhaopin\")]'\n",
    "print (r.html.xpath(xpath_翻页a)) # 物件\n",
    "\n",
    "href_列表 = [x.xpath('//@href')[0] for x in r.html.xpath(xpath_翻页a)]\n",
    "#print (href_列表)\n",
    "\n",
    "文字_列表 = [x.text for x in r.html.xpath(xpath_翻页a)]\n",
    "#print (文字_列表)\n",
    "\n",
    "href_字典 = {x.text:x.xpath('//@href')[0]  for x in r.html.xpath(xpath_翻页a)}\n",
    "print (href_字典)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>scheme</th>\n",
       "      <th>netloc</th>\n",
       "      <th>path</th>\n",
       "      <th>params</th>\n",
       "      <th>query</th>\n",
       "      <th>fragment</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>/zhaopin/</td>\n",
       "      <td></td>\n",
       "      <td>init=-1&amp;headckid=07e603eced9196c0&amp;fromSearchBt...</td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>/zhaopin/</td>\n",
       "      <td></td>\n",
       "      <td>init=-1&amp;headckid=07e603eced9196c0&amp;fromSearchBt...</td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>/zhaopin/</td>\n",
       "      <td></td>\n",
       "      <td>init=-1&amp;headckid=07e603eced9196c0&amp;fromSearchBt...</td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>/zhaopin/</td>\n",
       "      <td></td>\n",
       "      <td>init=-1&amp;headckid=07e603eced9196c0&amp;fromSearchBt...</td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>/zhaopin/</td>\n",
       "      <td></td>\n",
       "      <td>init=-1&amp;headckid=07e603eced9196c0&amp;fromSearchBt...</td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td></td>\n",
       "      <td></td>\n",
       "      <td>/zhaopin/</td>\n",
       "      <td></td>\n",
       "      <td>init=-1&amp;headckid=07e603eced9196c0&amp;fromSearchBt...</td>\n",
       "      <td></td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "  scheme netloc       path params  \\\n",
       "0                /zhaopin/          \n",
       "1                /zhaopin/          \n",
       "2                /zhaopin/          \n",
       "3                /zhaopin/          \n",
       "4                /zhaopin/          \n",
       "5                /zhaopin/          \n",
       "\n",
       "                                               query fragment  \n",
       "0  init=-1&headckid=07e603eced9196c0&fromSearchBt...           \n",
       "1  init=-1&headckid=07e603eced9196c0&fromSearchBt...           \n",
       "2  init=-1&headckid=07e603eced9196c0&fromSearchBt...           \n",
       "3  init=-1&headckid=07e603eced9196c0&fromSearchBt...           \n",
       "4  init=-1&headckid=07e603eced9196c0&fromSearchBt...           \n",
       "5  init=-1&headckid=07e603eced9196c0&fromSearchBt...           "
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "scheme      1\n",
      "netloc      1\n",
      "path        1\n",
      "params      1\n",
      "query       5\n",
      "fragment    1\n",
      "dtype: int64\n"
     ]
    },
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>init</th>\n",
       "      <th>headckid</th>\n",
       "      <th>fromSearchBtn</th>\n",
       "      <th>ckid</th>\n",
       "      <th>siTag</th>\n",
       "      <th>d_sfrom</th>\n",
       "      <th>d_ckId</th>\n",
       "      <th>d_curPage</th>\n",
       "      <th>d_pageSize</th>\n",
       "      <th>d_headId</th>\n",
       "      <th>curPage</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>-1</td>\n",
       "      <td>07e603eced9196c0</td>\n",
       "      <td>2</td>\n",
       "      <td>07e603eced9196c0°radeFlag=0</td>\n",
       "      <td>1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw</td>\n",
       "      <td>search_unknown</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>0</td>\n",
       "      <td>40</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>-1</td>\n",
       "      <td>07e603eced9196c0</td>\n",
       "      <td>2</td>\n",
       "      <td>07e603eced9196c0°radeFlag=0</td>\n",
       "      <td>1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw</td>\n",
       "      <td>search_unknown</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>0</td>\n",
       "      <td>40</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>-1</td>\n",
       "      <td>07e603eced9196c0</td>\n",
       "      <td>2</td>\n",
       "      <td>07e603eced9196c0°radeFlag=0</td>\n",
       "      <td>1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw</td>\n",
       "      <td>search_unknown</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>0</td>\n",
       "      <td>40</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>3</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>-1</td>\n",
       "      <td>07e603eced9196c0</td>\n",
       "      <td>2</td>\n",
       "      <td>07e603eced9196c0°radeFlag=0</td>\n",
       "      <td>1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw</td>\n",
       "      <td>search_unknown</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>0</td>\n",
       "      <td>40</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>4</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>-1</td>\n",
       "      <td>07e603eced9196c0</td>\n",
       "      <td>2</td>\n",
       "      <td>07e603eced9196c0°radeFlag=0</td>\n",
       "      <td>1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw</td>\n",
       "      <td>search_unknown</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>0</td>\n",
       "      <td>40</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>-1</td>\n",
       "      <td>07e603eced9196c0</td>\n",
       "      <td>2</td>\n",
       "      <td>07e603eced9196c0°radeFlag=0</td>\n",
       "      <td>1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw</td>\n",
       "      <td>search_unknown</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>0</td>\n",
       "      <td>40</td>\n",
       "      <td>e833e1340aa2bf4a05333d58a3a726a2</td>\n",
       "      <td>9</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "  init          headckid fromSearchBtn                         ckid  \\\n",
       "0   -1  07e603eced9196c0             2  07e603eced9196c0°radeFlag=0   \n",
       "1   -1  07e603eced9196c0             2  07e603eced9196c0°radeFlag=0   \n",
       "2   -1  07e603eced9196c0             2  07e603eced9196c0°radeFlag=0   \n",
       "3   -1  07e603eced9196c0             2  07e603eced9196c0°radeFlag=0   \n",
       "4   -1  07e603eced9196c0             2  07e603eced9196c0°radeFlag=0   \n",
       "5   -1  07e603eced9196c0             2  07e603eced9196c0°radeFlag=0   \n",
       "\n",
       "                                           siTag         d_sfrom  \\\n",
       "0  1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw  search_unknown   \n",
       "1  1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw  search_unknown   \n",
       "2  1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw  search_unknown   \n",
       "3  1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw  search_unknown   \n",
       "4  1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw  search_unknown   \n",
       "5  1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw  search_unknown   \n",
       "\n",
       "                             d_ckId d_curPage d_pageSize  \\\n",
       "0  e833e1340aa2bf4a05333d58a3a726a2         0         40   \n",
       "1  e833e1340aa2bf4a05333d58a3a726a2         0         40   \n",
       "2  e833e1340aa2bf4a05333d58a3a726a2         0         40   \n",
       "3  e833e1340aa2bf4a05333d58a3a726a2         0         40   \n",
       "4  e833e1340aa2bf4a05333d58a3a726a2         0         40   \n",
       "5  e833e1340aa2bf4a05333d58a3a726a2         0         40   \n",
       "\n",
       "                           d_headId curPage  \n",
       "0  e833e1340aa2bf4a05333d58a3a726a2       1  \n",
       "1  e833e1340aa2bf4a05333d58a3a726a2       2  \n",
       "2  e833e1340aa2bf4a05333d58a3a726a2       3  \n",
       "3  e833e1340aa2bf4a05333d58a3a726a2       4  \n",
       "4  e833e1340aa2bf4a05333d58a3a726a2       1  \n",
       "5  e833e1340aa2bf4a05333d58a3a726a2       9  "
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "init             1\n",
      "headckid         1\n",
      "fromSearchBtn    1\n",
      "ckid             1\n",
      "siTag            1\n",
      "d_sfrom          1\n",
      "d_ckId           1\n",
      "d_curPage        1\n",
      "d_pageSize       1\n",
      "d_headId         1\n",
      "curPage          5\n",
      "dtype: int64\n"
     ]
    }
   ],
   "source": [
    "# A-2 建构参数模板：找到关键参数及参数结构\n",
    "\n",
    "# 需要模组库\n",
    "from urllib.parse import urlparse, parse_qs\n",
    "import pandas as pd\n",
    "from IPython.display import display, HTML\n",
    "\n",
    "# 总体目标：输入 href_列表, 建构出参数字典\n",
    "\n",
    "# urlparse 解析后丢入数据框\n",
    "df = pd.DataFrame([ urlparse(x) for x in href_列表])\n",
    "df_qs = pd.DataFrame([{k:v[0] for k,v in parse_qs(x).items()} for x in df['query'] ])\n",
    "\n",
    "display(df)\n",
    "print(df.nunique())\n",
    "display(df_qs)\n",
    "print(df_qs.nunique())\n",
    "\n",
    "df_qs.curPage\n",
    "df_qs = df_qs.assign (curPage_int=df_qs.curPage.astype(int)) # 变成整数"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'init': ['-1'], 'headckid': ['07e603eced9196c0'], 'fromSearchBtn': ['2'], 'ckid': ['07e603eced9196c0°radeFlag=0'], 'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'], 'd_sfrom': ['search_unknown'], 'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'], 'd_curPage': ['0'], 'd_pageSize': ['40'], 'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'], 'curPage': ['1']}\n",
      "{'2': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=1', '3': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=2', '4': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=3', '5': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=4', '下一页': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=1', '': '/zhaopin/?init=-1&headckid=07e603eced9196c0&fromSearchBtn=2&ckid=07e603eced9196c0°radeFlag=0&siTag=1B2M2Y8AsgTpgAmY7PhCfg%7EfA9rXquZc5IkJpXC-Ycixw&d_sfrom=search_unknown&d_ckId=e833e1340aa2bf4a05333d58a3a726a2&d_curPage=0&d_pageSize=40&d_headId=e833e1340aa2bf4a05333d58a3a726a2&curPage=9'}\n"
     ]
    }
   ],
   "source": [
    "\n",
    "def parse_url_qs_for_curPage (url):\n",
    "    six_parts = urlparse(url) \n",
    "    out = parse_qs(six_parts.query)\n",
    "    return (out)\n",
    "\n",
    "# 取一例做模板\n",
    "参数模板 = parse_url_qs_for_curPage(href_列表[0])\n",
    "print (参数模板)\n",
    "\n",
    "print (href_字典)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1\n",
      "9\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "{0: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [0],\n",
       "  'keyword': ['用户体验']},\n",
       " 1: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [1],\n",
       "  'keyword': ['用户体验']},\n",
       " 2: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [2],\n",
       "  'keyword': ['用户体验']},\n",
       " 3: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [3],\n",
       "  'keyword': ['用户体验']},\n",
       " 4: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [4],\n",
       "  'keyword': ['用户体验']},\n",
       " 5: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [5],\n",
       "  'keyword': ['用户体验']},\n",
       " 6: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [6],\n",
       "  'keyword': ['用户体验']},\n",
       " 7: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [7],\n",
       "  'keyword': ['用户体验']},\n",
       " 8: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [8],\n",
       "  'keyword': ['用户体验']},\n",
       " 9: {'init': ['-1'],\n",
       "  'headckid': ['07e603eced9196c0'],\n",
       "  'fromSearchBtn': ['2'],\n",
       "  'ckid': ['07e603eced9196c0°radeFlag=0'],\n",
       "  'siTag': ['1B2M2Y8AsgTpgAmY7PhCfg~fA9rXquZc5IkJpXC-Ycixw'],\n",
       "  'd_sfrom': ['search_unknown'],\n",
       "  'd_ckId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'd_curPage': ['0'],\n",
       "  'd_pageSize': ['40'],\n",
       "  'd_headId': ['e833e1340aa2bf4a05333d58a3a726a2'],\n",
       "  'curPage': [9],\n",
       "  'keyword': ['用户体验']}}"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# A-3 建构参数模板生成器：keyword curPage\n",
    "def 参数模板生成(keyword, curPage):\n",
    "    参数 = 参数模板.copy()\n",
    "    参数['curPage'] = curPage\n",
    "    参数['keyword'] = keyword\n",
    "    return (参数)\n",
    "\n",
    "参数_keyword_用户体验_curPage = { \n",
    "    i:参数模板生成(curPage = [i], \\\n",
    "                  keyword = ['用户体验']) \\\n",
    "    for i,v in href_字典.items()\\\n",
    "    }\n",
    "\n",
    "# print(参数_keyword_用户体验_curPage) # 只生成本页有的额外翻页URL, 并没有推估到&curPage=9,也没有这页\n",
    "\n",
    "print (df_qs.curPage_int.min()) # 最小值只有1\n",
    "print (df_qs.curPage_int.max()) # 最大值只有9\n",
    "\n",
    "# 应该是 0 (本页)....9(最大值)\n",
    "\n",
    "参数_keyword_用户体验_curPage = { \n",
    "    i:参数模板生成(curPage = [i], \\\n",
    "                  keyword = ['用户体验']) \\\n",
    "    for i in range(0,df_qs.curPage_int.max()+1)\\\n",
    "    }\n",
    "参数_keyword_用户体验_curPage"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [],
   "source": [
    "# B-1 上周C-2  简化 上上周A-1   单一页面爬+解析\n",
    "session = HTMLSession()\n",
    "\n",
    "def requests_liepin( url, params):\n",
    "    r = session.get( url , params = payload)\n",
    "\n",
    "    # 先取特定元素, 精准打击其子后辈\n",
    "    主要元素 = r.html.xpath( '//ul[@class=\"sojob-list\"]/li')\n",
    "\n",
    "    # 作为xpath字典，键为我要抓的牛肉名称，值为xpath\n",
    "    dict_xpaths={ \n",
    "        'text': {\n",
    "            'edu':      '//div[contains(@class,\"job-info\")]/p/span[@class=\"edu\"]',\n",
    "            '经验':      '//div[contains(@class,\"job-info\")]/p/span[@class=\"edu\"]/following-sibling::span',\n",
    "            '薪水':    '//div[contains(@class,\"job-info\")]/p/span[@class=\"text-warning\"]', \n",
    "            '时间':    '//div[contains(@class,\"job-info\")]/p/time/@title', \n",
    "            '职称':    '//div[contains(@class,\"job-info\")]/h3/a', \n",
    "            '公司地点': '//div[contains(@class,\"job-info\")]/p/a',\n",
    "            '公司名称': '//div[contains(@class,\"sojob-item-main\")]//p[@class=\"company-name\"]/a', \n",
    "        },\n",
    "        'text_content': {\n",
    "        },\n",
    "        'href': {\n",
    "            '链结':    '//div[contains(@class,\"job-info\")]/h3/a', \n",
    "            '公司URL': '//div[contains(@class,\"sojob-item-main\")]//p[@class=\"company-name\"]/a', \n",
    "        }\n",
    "    }\n",
    "\n",
    "    def get_e_text_content(_xpath_):\n",
    "        # 高级列表推导\n",
    "        暂存结果 = [e.xpath(_xpath_)[0].lxml.text_content() for e in 主要元素]\n",
    "        return(暂存结果)\n",
    "\n",
    "    def get_e_text(_xpath_):\n",
    "        # 高级列表推导\n",
    "        暂存结果 = [\"\".join([x.strip() if type(x) is str else x.text.strip() for x in e.xpath(_xpath_)]) for e in 主要元素]\n",
    "        return(暂存结果)\n",
    "\n",
    "    def get_e_href(_xpath_):\n",
    "        # 高级列表推导\n",
    "        暂存结果 = [list(e.xpath(_xpath_, first=True).absolute_links)[0] \\\n",
    "                   if len(e.xpath(_xpath_, first=True).absolute_links) >= 1  \\\n",
    "                   else \"\" for e in 主要元素]\n",
    "        return(暂存结果)\n",
    "\n",
    "    # 只对主要元素下进行.xpath取值\n",
    "    数据字典 = dict()\n",
    "\n",
    "    数据字典 = {k:get_e_text_content(v) for k,v in dict_xpaths['text_content'].items()}\n",
    "    数据字典.update({k:get_e_text(v) for k,v in dict_xpaths['text'].items()})\n",
    "    数据字典.update({k:get_e_href(v) for k,v in dict_xpaths['href'].items()})\n",
    "\n",
    "    数据 = pd.DataFrame(数据字典)\n",
    "    \n",
    "    return (数据)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Wall time: 4.97 s\n"
     ]
    }
   ],
   "source": [
    "%%time\n",
    "time.sleep(3+4*random())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stderr",
     "output_type": "stream",
     "text": [
      "UsageError: Line magic function `%%time` not found.\n"
     ]
    }
   ],
   "source": [
    "# B-2 多个页面，但放慢脚步 time.sleep\n",
    "%%time\n",
    "\n",
    "import time\n",
    "from random import random\n",
    "\n",
    "url = \"https://www.liepin.com/zhaopin/\"\n",
    "\n",
    "list_df = list()\n",
    "for k,v in 参数_keyword_用户体验_curPage.items():\n",
    "    payload = v\n",
    "    df = requests_liepin( url, params = payload)\n",
    "    time.sleep(3+4*random())  #放慢脚步 3-7秒, 平均约5秒\n",
    "    df = df.assign (curPage = k)  # 区分  curPage\n",
    "    list_df.append(df)\n",
    "\n",
    "df_all = pd.concat(list_df).reset_index()\n",
    "df_all.index.name = '序'\n",
    "\n",
    "# 上周C-4   输出\n",
    "df_all.to_excel(\"Web数据挖掘_翻页.xlsx\",\\\n",
    "                sheet_name=\"用户体验\")\n",
    "\n",
    "# 预估时间: 5秒*10 =50\n",
    "# 预估数量: 40*10 =400"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "## 多个页面+多个关键词\n",
    "time.sleep"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "用户体验 10\n",
      "UX 10\n",
      "Wall time: 1min 48s\n"
     ]
    }
   ],
   "source": [
    "%%time\n",
    "# B-3 多个页面+多个关键词\n",
    "import time\n",
    "from random import random\n",
    "\n",
    "url = \"https://www.liepin.com/zhaopin/\"\n",
    "xpath_翻页a = '//div[@class=\"pagerbar\"]/a[starts-with(@href,\"/zhaopin\")]'\n",
    "\n",
    "keywords = ['用户体验','UX']\n",
    "list_df = list()\n",
    "\n",
    "## 第一页试探有多长的页面\n",
    "for key in keywords:\n",
    "    payload = 参数模板生成(keyword=[key], curPage=['0'])\n",
    "    df = requests_liepin( url, params = payload)\n",
    "    href_列表 = [x.xpath('//@href')[0] for x in r.html.xpath(xpath_翻页a)]\n",
    "    df = pd.DataFrame([ urlparse(x) for x in href_列表])\n",
    "    df_qs = pd.DataFrame([{k:v[0] for k,v in parse_qs(x).items()} for x in df['query'] ])\n",
    "    df_qs = df_qs.assign (curPage_int=df_qs.curPage.astype(int)) # 变成整数\n",
    "    长度 = df_qs.curPage_int.max()+1\n",
    "    参数_keyword_X_curPage = { \n",
    "        i:参数模板生成(curPage = [i], \\\n",
    "                      keyword = [key]) \\\n",
    "        for i in range(0,长度)\\\n",
    "        }\n",
    "    #print (参数_keyword_X_curPage)\n",
    "    print (key,长度)\n",
    "    \n",
    "    for k,v in 参数_keyword_X_curPage.items():\n",
    "        payload = v\n",
    "        df = requests_liepin( url, params = payload)\n",
    "        time.sleep(3+4*random())  #放慢脚步 3-7秒, 平均约5秒\n",
    "        df = df.assign (keyword = key)  # 区分  keyword    \n",
    "        df = df.assign (curPage = k)  # 区分  curPage    \n",
    "        list_df.append(df)\n",
    "        \n",
    "df_all = pd.concat(list_df).reset_index()\n",
    "df_all.index.name = '序'\n",
    "\n",
    "df_all.to_excel(\"Web数据挖掘_翻页.xlsx\",\\\n",
    "                sheet_name=\"_\".join(keywords))\n",
    "# 预估时间: 2*5秒*10 =100\n",
    "# 预估数量: 2*40*10 =800"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "用户体验 10\n",
      "UX 10\n",
      "产品需求 10\n",
      "PRD 10\n",
      "Wall time: 4min 7s\n"
     ]
    }
   ],
   "source": [
    "%%time\n",
    "# C-1 多个页面+多个关键词\n",
    "import time\n",
    "from random import random\n",
    "\n",
    "url = \"https://www.liepin.com/zhaopin/\"\n",
    "xpath_翻页a = '//div[@class=\"pagerbar\"]/a[starts-with(@href,\"/zhaopin\")]'\n",
    "\n",
    "keywords = ['用户体验','UX','产品需求','PRD']\n",
    "list_df = list()\n",
    "\n",
    "## 第一页试探有多长的页面\n",
    "for key in keywords:\n",
    "    payload = 参数模板生成(keyword=[key], curPage=['0'])\n",
    "    df = requests_liepin( url, params = payload)\n",
    "    href_列表 = [x.xpath('//@href')[0] for x in r.html.xpath(xpath_翻页a)]\n",
    "    df = pd.DataFrame([ urlparse(x) for x in href_列表])\n",
    "    df_qs = pd.DataFrame([{k:v[0] for k,v in parse_qs(x).items()} for x in df['query'] ])\n",
    "    df_qs = df_qs.assign (curPage_int=df_qs.curPage.astype(int)) # 变成整数\n",
    "    长度 = df_qs.curPage_int.max()+1\n",
    "    参数_keyword_X_curPage = { \n",
    "        i:参数模板生成(curPage = [i], \\\n",
    "                      keyword = [key]) \\\n",
    "        for i in range(0,长度)\\\n",
    "        }\n",
    "    #print (参数_keyword_X_curPage)\n",
    "    print (key,长度)\n",
    "    \n",
    "    for k,v in 参数_keyword_X_curPage.items():\n",
    "        payload = v\n",
    "        df = requests_liepin( url, params = payload)\n",
    "        time.sleep(3+4*random())  #放慢脚步 3-7秒, 平均约5秒\n",
    "        ## 备份\n",
    "        df.to_csv(\"Web数据挖掘_liepin_{key}_{k}.tsv\"\\\n",
    "                  .format(key=key, k=k), sep=\"\\t\", encoding=\"utf8\")\n",
    "        \n",
    "        df = df.assign (keyword = key)  # 区分  keyword    \n",
    "        df = df.assign (curPage = k)  # 区分  curPage    \n",
    "        list_df.append(df)\n",
    "        \n",
    "df_all = pd.concat(list_df).reset_index()\n",
    "df_all.index.name = '序'\n",
    "\n",
    "df_all.to_excel(\"2Web数据挖掘_翻页_4.xlsx\",\\\n",
    "                sheet_name=\"_\".join(keywords))\n",
    "# 预估时间: 4*5秒*10 =200\n",
    "# 预估数量: 4*40*10 =1600"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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